Wrench.



C. P. BAKER.

WRENCH.

APPLICATION FILED APR. 10. I914.

'IHE NORRIS PETERS 60., PHO

Patented Apr. 20, 1915.

QHIOM TO-LITHQ, WASHINGTON n.

* @FTQE.

COMMODORE P. BAKER, OF ST. CATHARINE, MISSOURI.

WRENCH.

Application filed April 10, 1914.

To all whom it may concern Be it known that I, COMMODORE P. BAKER, a citizen of the United States, residing at St. Catharine, in the county of Linn and State. of Missouri, have invented new and useful Improvements in Wrenches, of which the following is a specification.

This invention relates to improvements in wrenches.

The object of the invention is to provide a wrench having means for engaging the head of a bolt to sustain the same against rotation to permit of the wrench operating upon the nut screwed on the bolt for removing or securing the same to the bolt.

In the drawing there is illustrated a simple and approved reduction of the invention to practice, and in which:

Figure 1 is a view of my wrench, parts being shown in section and illustrating the same arranged upon a rail and engaging the head of a bolt to sustain the same against rotation while the nut is being screwed upon the bolt by the operating member of the wrench, Fig. 2 is a view looking toward the inner face of the lever and being in section approximately on the line 2--2 of Fig. 1, and Fig. 8 is a transverse sectional view approximately on the line 38 of Fig. 2.

In the drawing 1 designates a rail, 2 the fish plates arranged upon the opposite sides of the rail, 3 a bolt passing through openings in the fish plate and webs of the rail, 4 the head of the bolt which contacts with one of the fish plates and 4' the nut which engages the threaded shank of the bolt.

The wrench includes a substantially U- shaped yoke 8, the inner faces of the sides or arms of which being shaped to agree with the opposite faces of the head of the rail 1, and one of the said sides or arms 9 is of a materially less length than the opposite side or arm 10. The longer arm 10 has its inner face provided with a rectangular slot 10 which opens or is formed from the lower edge of the said arm 10, and the said slot is of a width to engage with two of the opposite sides of the head 1 of the bolt 3.

The connecting member of the yoke 8 is designated by the numeral 11, and the same is provided with a lateral extension 11 which projects beyond the arm 9 of the yoke, t e sa d ex nsion being round in. cross Specification of Letters Patent.

Patented Apr. 20, 1915.

Serial No. 83Q,997.

tion and terminating in an enlarged ballhead 12.

The numeral 7 designates a substantially rectangular elongated lever which is formed with a right angular offset 13 provided with an extension which is arranged parallel with the lever 7 the said extension being centrally slotted to form the same with oppositely disposed arms 14 and 15 respectively, the arm 15 having its inner face inclined and provided with teeth, and the said arms 14: and 15 provide the jaws of the wrench. The lever 7, above the jaw of the wrench is formed with a laterally projecting outwardly extending boss or enlargement 16, the outer face of which having an arcuate depression or pocket 17 which receives the head 12 of the yoke 8.

The numeral 18 designates a plate which is secured to the boss 16, the said plate having its inner face formed with a depression corresponding in shape and inclination with that of the pocket 17 the outer face of said plate having an arcuate slot 19 which communicates with the depression or pocket 17 of the boss 16.

In operating the device, to the lever 7 is imparted a horizontally as well as a partial rotary and swinging movement, so that the jaw of the shank will engage with the nut to secure the same upon the bolt.

Having thus described the invention, what I claim is:

A wrench designed for operation upon nuts and bolts connecting fish plates to a rail, comprising a substantially U-shaped member, the arms of which engage with the opposite sides of the head of a rail, one of the arms being of a materially greater length than the second arm, and the said lengthened arm having a slot to receive the head of a bolt, the yoke having a round lat eral extension which terminates in a ballhead, a shank having a boss upon one of its faces which projects laterally therefrom, and which is provided with an arcuate depression providing a pocket to receive the ball head of the yoke, a plate having its inner face formed with a depression agreeing with the pocket secured to the boss, said plate having an arcuate slot which communicates with the depression, the said lever opposite t e 1995. h ng an offs P n p o d d with a longitudinal extension Which is cen- In testimony whereofI affix my signature trally slotted to provide spaced arms Which in presence of two Witnesses. form the jaw for the lever, and one of said V COMLIODORE'P. BAKER. arms being inclined and provided with teeth, Witnesses: V 5 and the said jaw adapted to engage With a F. X. DEVOY,

V nut upon the bolt. W. W. ll IARTiN.

G'opies of this patent may be obtained for five cents e'ah, by addressing the Commissioner of Patents,

Washington, D. Q. 

